2556281348 has 6 divisors (see below), whose sum is σ = 4473492366. Its totient is φ = 1278140672.

The previous prime is 2556281327. The next prime is 2556281353. The reversal of 2556281348 is 8431826552.

It can be written as a sum of positive squares in only one way, i.e., 1537267264 + 1019014084 = 39208^2 + 31922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2556281299 and 2556281308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319535165 + ... + 319535172.

It is an arithmetic number, because the mean of its divisors is an integer number (745582061).

Almost surely, 2^2556281348 is an apocalyptic number.

It is an amenable number.

2556281348 is a deficient number, since it is larger than the sum of its proper divisors (1917211018).

2556281348 is a wasteful number, since it uses less digits than its factorization.

2556281348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639070341 (or 639070339 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 2556281348 is about 50559.6810512092. The cubic root of 2556281348 is about 1367.3180607902.

The spelling of 2556281348 in words is "two billion, five hundred fifty-six million, two hundred eighty-one thousand, three hundred forty-eight".